This very collectible pattern by Alvin, Raphael, was introduced in 1902, and was a new pattern when this one was given: it is engraved 1878-1903 on the back. It appears to be an Anniversary gift to the original collector, a woman named Amelia. This one is in good condition, measures about 6 inches in length, and weighs about 35.5 grams, rather hefty for a teaspoon. Lovely image of of a maiden in gown in an Art Nouveau style, with flowers.
I have another one of these listed, engraved Amelia, from the same collection.